Delta
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Delta may refer to:
Theory
- Delta, the frequency difference represented by an interval relative to its root, used to classify rational intervals as delta-N ratios
- Delta, the frequency difference represented by an interval relative to other intervals of a chord, used to notate the delta signature of delta-rational chords
- δ (lowercase delta), a note name used in certain musical notation systems to designate a note near D, but having a different musical function[1]
Scales
- Delta scale, a mode of the Lambda scale in Bohlen-Pierce tuning
- Delta scale, a scale equivalent to 8ed16/15